Construction of foundations for reservoirs in the Caspian sea

The development of oil and gas fields located in the shelf zones of seas and oceans is associated with the creation of a special infrastructure. This required the development and construction of special hydraulic structures, facilities and the development of technological processes that meet the conditions for organizing work on drilling, production and transportation of oil and gas from offshore fields. Ensuring the normal operation of offshore wells is associated with the development of the field, which requires the laying of underwater product pipelines, the construction of tank farms, installations for oil preparation and loading it into tankers, gas compressor and pumping stations, special installations for water purification and pumping it into the reservoir, etc. The intermediate section is made in the form of separate vertical piles, connected at the top by beams with reinforced concrete flooring laid on them. Large section bored piles are widely used in the various kinds of buildings. In the present article the manufacturing technique and principles for determining the bearing capacity of large section bored piles with a “hard core” were considered. Technological parameters of large section bored piles with a “hard core” are given in manufacturing in urban area hear existing buildings, and structures and also in the construction of offshore structures. The data on determination of bearing capacity of single bored piles with a “hard core” are discussed. It was established that these piles bear much larger horizontal and vertical loads, and are the most cost effective than precast and bored piles. Keywords: Bored piles, “hard core”, soil resistance, casing pipe inventory, hanging pile grillage.